The update brings performance and stability improvements on the devices, but is also expected to fix an issue with streaming audio.

Last month, Google acknowledged that some Nexus devices that updated to Android 4.2 (apart from the Nexus 4) were hit with audio drop-outs when streaming audio va Bluetooth using the Advanced Audio Distribution Profile (A2DP) system.

"We have fixed the A2DP streaming stutter problem," a Google spokesperson said in January. "The next release should have the fix. Sorry about the problem."

It is not confirmed at this stage that the A2DP problem is addressed in 4.2.2, but it is certainly expected to be the case.

The update has not yet been spotted on the LG-made Nexus 4, but the handset is not thought to suffer from the A2DP drop-outs. This means it may or may not get the update.

Nexus 7, Nexus 10 and Galaxy Nexus owners should expect to be alerted of the 4.2.2 update over the coming weeks, although its availability may depend on their mobile carrier.